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- Title
Synthesis, Microstructure, Dielectric and Ferroelectric Properties of (Na,Bi,K)TiO<sub>3</sub> Ceramics.
- Authors
Kaleva, G. M.; Politova, E. D.; Mosunov, A. V.; Stefanovich, S. Yu.; Loginov, A. B.; Kashapov, D. R.; Efremova, A. A.; Koksharova, T. A.; Khripunov, Yu. V.; Loginov, B. A.
- Abstract
Single-phase ceramic samples with the perovskite structure [(Na0.5Bi0.5)1 – xKx] TiO3 (x = 0, 0.01, 0.02, 0.03, 0.04, 0.05, 0.06) are prepared by the method of solid-state synthesis and their structure, microstructure and dielectric and ferroelectric properties are studied. An increase in the unit-cell parameters of the perovskite lattice as a result of an increase in the K-cation content in accordance with the ratio of the radii of cations in the A sublattice of the perovskite structure is proved. The method of second-harmonic generation confirms that the introduction of potassium cations in the A positions of the perovskite lattice promotes enhancement of the ferroelectric properties of the studied samples. Dielectric-relaxation effects are revealed, which indicate the presence of vacancies in the oxygen sublattice.
- Publication
Journal of Surface Investigation: X-Ray, Synchrotron & Neutron Techniques, 2020, Vol 14, Issue 4, p663
- ISSN
1027-4510
- Publication type
Academic Journal
- DOI
10.1134/S1027451020040102